Re: kern/52676: Kernel assert "pmap->pm_obj[i].uo_npages == 0" on 8.99.3 [syzkaller]

[Kamil Rytarowski <n54%gmx.com@localhost>]

The following reply was made to PR kern/52676; it has been noted by GNATS.

From: Kamil Rytarowski <n54%gmx.com@localhost>
To: gnats-bugs%NetBSD.org@localhost, Dmitry Vyukov <dvyukov%google.com@localhost>
Cc: 
Subject: Re: kern/52676: Kernel assert "pmap->pm_obj[i].uo_npages == 0" on
 8.99.3 [syzkaller]
Date: Tue, 31 Oct 2017 04:51:02 +0100

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 From: Kamil Rytarowski <n54%gmx.com@localhost>
 To: gnats-bugs%NetBSD.org@localhost, Dmitry Vyukov <dvyukov%google.com@localhost>
 Message-ID: <315ee42c-4c5b-ef27-6400-238d32434ca2%gmx.com@localhost>
 Subject: Re: kern/52676: Kernel assert "pmap->pm_obj[i].uo_npages == 0" on
  8.99.3 [syzkaller]
 References: <pr-kern-52676%gnats.netbsd.org@localhost>
  <20171030194951.935F27A1F7%mollari.NetBSD.org@localhost>
  <20171030195000.B1A2A7A1F7%mollari.NetBSD.org@localhost>
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 Dmitry,
 
 Can you reproduce the panic with fresh HEAD kernel?
 
 1. HEAD kernel can be fetched from our releng builds:
 
 http://nycdn.netbsd.org/pub/NetBSD-daily/HEAD/
 
 please check the most recent date
 
 path amd64/binary/kernel/netbsd-GENERIC.gz
 
 2. The NetBSD kernel can be built with ./build.sh kernel=3DGENERIC using
 this example mirror:
 
 https://github.com/netbsd/src
 
 
 To finalize the upgrade process please replace new kernel old one in
 /netbsd in guest and reboot.
 
 
 HEAD also has fixed the hanging issue.
 
 
 I will enhance the NetBSD readme section in syzkaller to describe how to
 prepare the kernel, environment etc.. similar to the Linux documentation.=
 
 
 
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